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  1. #1
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    Stock plastic or aftermarket aluminum derailleur plulleys???

    Is there any advantage to going with aftermarket aluminum pulley wheels on a rear derailleur????
    Niner Jet9

    Niner Air9

  2. #2
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    Reputation: SteveUK's Avatar
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    I switched the (almost new) stock wheels (one ceramic, one sealed bearing) from my Ultegra in favour of KCNC's sealed bearing versions. I was surprised just how much smoother and quieter the drivetrain turns. Ultegra is XT level, so I'd imagine any derailleur below that in the scale would feel an even more noticable benefit. I'd recommend them.
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    What luck for rulers, that men do not think - Adolf Hitler

  3. #3
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    Ok, sounds good, I will be replacing an XTR pulley, which I believe are already sealed bearing, but I've noticed that the plastic wheels wear down after a couple hundred miles off road, and of course the aluminum ones come in cool colors.
    Niner Jet9

    Niner Air9

  4. #4
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    I just ordered some aluminum ones for my rear XT. Have no clue how they'll perform but I do know they are heavier than the plastic/ceramic ones most likely due to they use actual bearings.

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